package person;

public class Demo03 { public static void main(String[] args) {
    int sum = 0;
    for (int i = 1; i < 100; i++) {
        if (i % 2 != 0) {
            sum += i;
        }
    }
    System.out.println("1到100之间所有奇数的和为：" + sum);
}
}
